Question Help with com ports - Windows 10, 8, 7, XP etc.

Can't open the serial(COM) port on odin3. iv checked the forums for a fix to the problem it tells me to go into device manager but there's no com ports listed but one its not what I'm looking for but i did notice that when my android device is connected in recovery mode it says device descriptor request failed don't know how to get my com ports back. any help would be appreciated

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how to connect yureka as usb com port?

i flashed my phone and the imei got invalid after that. i saw some tutorial on web for that using "QPST" software but i am not able to connect the phone as usb virtual serial port that is the usb com port. can anyone help me out with that ?

Qualcomm QPST Driver to access USB as COM

I'm trying to connect to my device using QPST, but the device is not showing up in the COM ports. I've tried to delete all the usb devices related to the device in device manager but all to no avail. And none of the dial codes I'm using seem to be working. Only ones that work are those that start with "*#*#" and end with "#*#*". Only com port I get is the default COM1, to which there is no phone connected. The other problem is that the drivers I have doesnt seem to be working, I even had to install them by disabling hardware signing. Device is not detected in download or recovery mode either.
Processor is a MSM8212 and the mainboard is MSM8610.
I'm on windows 8.1
Your device is in regular mode... to access DM you HAVE to have it in DM mode.... so try EFSpro to switch your phone into DM mode or you will have to keep looking for a dial pad code. Some handsets allow sysfs to enable DM mode too. Have a look and do some research. Your QPST drivers should come from the manufacturer... ie I am using samsung drivers to use the DM port, not drivers from QPST.

s5 usb connect - device not recognized cant access secret menu *#0808#

s5 usb connect - device not recognized cant access secret menu *#0808#
can anyone give advice how to access menu *#0808# when I dial it trys to call the number not open menu
my usb is not work on s5
always says device not recognized but it charges perfect on connect
no one has advice?
Look for Samsung usb driver, it will open a Samsung Dev website, download and install the drivers. Of it's not working either, try on another USB port, another computer, another cable, another phone with the same steps above, of it's not recognizing it on all computers, it's a faulty USB port, it may charge but no data transfer.
midi_1996 said:
Look for Samsung usb driver, it will open a Samsung Dev website, download and install the drivers. Of it's not working either, try on another USB port, another computer, another cable, another phone with the same steps above, of it's not recognizing it on all computers, it's a faulty USB port, it may charge but no data transfer.
Click to expand...
Click to collapse
i have a g900v s5 here
the usb port is a new one, says g9008v on the usb hardware. is there a way to check the usb driver on the phone? maybe the usb driver needs reset or update

bricked my smartwatch in flash tool and something about DOWNLOAD_CMD_FAILED

hi,
i bricked my u8 clone when i was flashing it with flashtool and it stopped at 25% with an error about DOWNLOAD_CMD_FAILED or something like that (i forgot what the error looked liked) and now it wont turn on but in device manager it says unknown usb device (device descriptor failed) can anyone tell me how to fix it please, below is the screenshot of device manager with the unknown usb device highlighted, oh yeah and the ports (COM & LPT) section is the one i added myself
for some strange reason i left the smartwatch for a few hours, held the power button, plugged in the usb and then it popped up with USB modem driver ( COM3) in device manager and it flashed so this thread is closed now
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Device not recognized error

Whenever I plug my phone into my pc I get this error. I tried 3 different computers and 4 different cables. I installed the Samsung usb drivers and adb drivers and I still get the error. I've had some people tell me the problem could be the cable, the charging port on the phone or the motherboard. What's wrong and how can I fix it?
Hi can you please provide more information on your issue like the specific error message??

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